Burner-mounting means



Dec. 24, I929. HOFFMAN 1,740,512

BURNER MOUNTING MEANS Filed 1929 5 Sheets-Sheet 1 Dec. 24, 1 929. G. A. HOFFMAN BURNER MOUNTING MEANS a SheetS-Sheet 2 Filed Feb. 9, 1929 Wane/0o 1E5- fieiz-Jfoffmaw J Q 43 I m wwwwm Mommas Dec. 24, 1929. G. A. HOFFMAN BURNER MOUNTING MEANS Filed Feb. 9, 1929 3 Sheets-Sheet 3 M m /go O O 0 O I Tn an a wmm rlrArvllllllllllllIllrlllllllll'l I'Il'l'llllllll Patented Dec. 24, 1929 UNITED STATES PATENT QFFIC GEORGE ALBERT HOFFMAN, 0F MANSFIELD, OHIO, ASSIGNOR TO THE NEW METHOD STOVE COMPANY, OF MANSFIELD, OHIO BURNER-MOUNTING MEANS Application filed February 9, 1929. Serial No. 338,743.

The invention relates to new and improved means for permitting quick and easy mounting and dismounting of burners, the invention being intended primarily for use in connection with the oven and broiler burners of gas ranges.

It is one object of the invention to provide a new and improved construction whereby after inserting the burner and initially engaging an improved portion thereof with an overlying support, said portion and support may be operatively engaged simply by sliding the burner, and in this connection a further aim is to provide a new and improved construction whereby an air mixer on the burner and the discharge nipple of a needle valve in the gas line of the stove, co-operate in holding the burner against accidental sliding to released position, permitting such sliding however when the mixer and nipple are disengaged by slightly lifting a portion of the burner.

In the preferred construction, the support is formed with a slot enlarged at one end and the burner is provided with an upstanding neck having a head for passage through said slot so that upon sliding of the burner, the head will overlie the support, and it is a further aim to provide the aforesaid neck with a shoulder below but not covered by said head, the proportion of parts being such that this shoulder strikes the lower side of the support when the head is passed through the enlarged slot end, so that the neck is then in position for sliding into the slot.

A still further aim is to provide a neckheadslot connection between the support and the burner which may readily be engaged or disengaged by feeling for the proper relation of parts rather than actually seeing such relation, the head being of such form as to readily pass through the enlarged slot end as soon as even a restricted portion of said head is in position for reception in said slot en a With the foregoing and minorobjects in view. the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawings.

Fig. 1 is a vertical sectional view of an oven of the general type shown in my U. S. Patent 1,643,339 of September 27 1927 showing the improved burner-mounting means.

F ig. 2 is a horizontal sectional View on line 22 of Fig. 1.

Fig. 3 is a fragmentary view similar to a portion of Fig. 2 but illustrating only the burner supporting plates and associated parts.

Fig. 4 is a vertical sectional view on line 44 of Fig. 1 and Fig. 2, and by the line 17, this View indicates the plane on which Fig. 1 is cut.

Fig. 5 is a detail plan view showing the burner and support connecting means in initial engagement with each other.

Fig. 6 is a sectional view on line 66 of Fig. 5.

Fig. 7 is a view similar to Fig. 5 but showing the connection completely engaged.

Fig. 8 is a sectional view on line 88 of Fig. 7

Fig. 9 is a detail transverse sectional view on line 9-9 of Fig. 8.

Since the present invention is not concerned with any particular oven structure, it will sufflee to say that the oven shown embodies an upper baking compartment 10 and a lower broiling compartment 11, together with burner supporting means 12 between the two compartments, said means being shown in the form of two plates which assist in guiding the hot air from the lower to the upper compartment. The gas line 13 of the range terminates in an upwardly projecting nipple 14 forming the outlet of a needle valve 15, this nipple being removaloly received in a central opening 16 in a gas mixer 17 for the burner 18. This burner is shown of U-shape and provided at the center of its arm-connecting portion with a downwardly projecting leg 19 carrying the mixer 17. Caps 20 areshown for closing the ends of the two arms of the burner 18 and in the present showing, certain details of the unique burner supporting means are integral with these caps. As the construction in connection with each cap 20 is the same as that on the other cap, the description will. be confined to one, Y

vertical edge portion which is about flush with the inner edges of the shoulders 24 and consequently projects inwardly beyond the .T-head 22, The opposite or outer edge of the neck 21 is preferably provided with a convex portion 26 and immediately above this por-v tion with a concave formation 27, Portion 26 po s a n t on to V be her in ft r d scribed and the formation 27 is instrumental in guiding the headed neck into the receiving slot which will hereinafter be explained. To further assist in this guiding, the head 22 is provided with sloping surfaces 2829 and the upper part'of the neck portion 25 is preferably tapered as indicated at 30 in Fig. 9.

The plate 12is formed with a slot 31 of-a width to receive the neck 21, said slot being formed with an fi llairged end through which the head 22 is upwardly inseltible.v

The slot end 32 however, aswill'be clear from Fig. 5 is of insufficient size tov perm t upward passage of the shoulders 23 therethrough.

'- Thus,- whenthe head 22 has passed through the slot .end 32 and the, portion of the neck- 21 between said head and .the shoulders 28 is in readiness for sliding into the slot 31, the upper faces 24 of said shoulders abut the lower side of the plate so that the. neck portion may readily move into. the slot. To

assist in guiding this neck portion into. the slot 31, the side walls of the slot are formedwith edge portions 33. which converge from. I the largertoward the smaller end of said slot.

By reference to Fig. 5, it would seemv that the head 22' might move sufficiently to the left to permit passage ofv the sboulders23 through the slot end 32. However, by reference to Fig. 6, it will be seen that the plate 12 at this time bears against the convex edge portion 26 of the'neck2l and the portion 27 of saidneck will prevent the movement in qu st ene ins r -th burne it is pla ed in he mp tment 11 and h h ads. 22 i y guidedrinto; the enlarged ends 32 of the slots 1, and th p ar mov ment of par i m te by th shou d s 23 and he lo is prc idedr ith he centers-ins edg s 3 s a ei-1 -sl i ling ef the b rnereus P im r ov ment f s eks. nto said slots hen. the arm es eis engaged; i h the." r I upwardly ac ng surfaces ch a enet'cev pp e 1 and th ea ner; thu e leeaia accidental movement. By a reversal o-fthese steps, the burner may be quickly and easily removed at any time.

The details shown and described have proven very desirable and hence are preferably followed. However, within the scope of the invention as claimed,'vari at-ions may be made.

I claim 1. In an oven or like structure, a fuel supply linehaving an upwardly directed terminal, a burner engaged with said terminal and upwardly shiftable therefrom, and two upstanding lugs on the burner at points spaced from said terminal, said lugs having downwardly facing portions, burner-supporting means overlying said burner, said lug portions resting upon said supporting means and being slidable horizontally therefrom when horizontal shifting of the burner is permitted by disconnecting it fromsaid fuel line terminal.

2; A structure as specified'inclaim 1; said burnersupporting means having lug-engagi ing portions holding said I burner against swinging about its connection with saidterminal. I i

3. In an oven or like structure, a fuel sup ply line having an upwardly directed ter-' in l ar ne ide f an n. compartment, horizontal burner-supporting meanshaving slots near another side of the compartment, each of said slots having an enlarged end, a horizontally disposed U-shaped burner hav-. ing a downwardly projecting portion provided with an air mixer which is removably supported upon said terminal; and two upstanding lugs on the ends of said U-shaped burner, said lugs being receivedin said slots andhaving heads lying upon said supporting means, said heads being downwardly movable through the enlarged slot ends upon disengagement of said air mixer from said terminal and proper shifting: of the burner.

4. In; a burner-supporting means, a neck pro ectlng upwardly from the burner, said neck having a headand an upwardly facing shoulder below but not covered by said head,

- and a support having a slot of awidth to receive the portion of the neck between said head and said shoulder, said slot having an enlarged end to permit upward insertion of said head therethrough, saidenlarge-d slot,

' end being of insufficient size to permit passage of said shoulder therethrough, whereby said shouldenstrikes said support when said neck portion is in position'for sliding into said slot. l i i 5." In a burner supporting means,- a neck projecting upwardly from the burner and a ing, a h a hich p ojects laterallyin op.- p site dire tions said ne k eing-pro ided elow saidv h ad. with t o shoulders having cred-by said head and a supportxover the burner having a slot of a width to receive the portion of the neck between said head and said shoulders, said slot having an enlarged end through which said head is upwardly insertible, said enlarged slot end being of in suflioient size to'permit upward passage of said shoulders therethrough, whereby said shoulders strike the support when said neck portion is positioned to slide into the slot.

6. A structure as specified in claim 5; said slot having longitudinal edge portions which converge from its enlarged end towards its other end to assist in guiding said neck portion into position.

7. In a burner mounting, a fuel supply line having an upwardly directed terminal, horizontal burner supporting means having a slot, said slot being spaced from said terminal and being formed with an enlarged end, a horizontally disposed burner having a downwardly projecting portion removably engaged with said terminal, and an upstanding lug on said burner spaced from said downwardly projecting portion, said lug having a neck received in the narrow part of said slot and a head resting on said support, said head being downwardly movable through said enlarged slot end upon disengagement oi said downwardly projecting portion of the burner from said terminal and horizontal shifting of said burner.

In testimony whereof I have hereunto affixed my signature.

GEORGE ALBERT HOFFMAN. 

